Consultant

The plasma arc welding procedure is usually compared to the gas tungsten arc process. If an electric arc between a tungsten electrode and the work is constricted in a cross-sectional area, its temperature increases because it carries the same amount of current. This constricted arc is called a plasma, or the fourth state of matter.

TIG welding , called another name of gas tungsten arc welding, is an arc welding process that operates at high temperature (over 6,000 degrees Fahrenheit) to melt and heat metals. While it is more expensive than stick welding, it is cleaner and more versatile (works on steel, aluminum, brass and many other metals).It results in high quality welds.

Arc welding is the process of joining two metal workpieces together using a flux covered electrode which is melted in an electric arc and becomes a fused part of the pieces being welded. Arc welding requires time, effort and patience to master as the weld rod position is very delicate to the position of the workpiece. The following is a simple guide to learn the basic technique of arc welding.

There are a huge variety of types of welds and the fillet weld is one of the most popular kinds of welds. Other types of welds can not miss in this list include groove welds, surface welds, plug welds, slot welds, flat welds, seam welds, spot welds, upset welds

How to choose a good stick welding machine?

Currently there are many types of welding machines come from the brands with the cost and quality . Each type of welding machine will have unique advantages and suit the needs of each customer. We would like to offer a few criteria to choose the standard qualified stick welding machine

Soldering is a welding method to connect solid metal or alloy parts by means of a metal or intermediate alloy called a solder. During the welding process, the metal (or intermediate alloy) is fired to the flow state, while the welding metal only needs to be heated to a certain temperature at which brazing metal and solder can diffuse into each other.

Aluminum is a light metal with a specific gravity of 2.7 g / cm³. Melting temperature of aluminum is 660 degrees Celsius. The thermal conductivity of aluminum is large (3 times greater than that of low carbon steel).

Welding defects are the deviations in shape and size of the metal structure compared to design standards and technical requirements, which reduces their durability and productivity. Welding defects are formed during welding process

Slag is a nonmetallic component that exists in the weld. Slag inclusion is a type of defect that is easily visible in the weld. Slag can also represent inside the weld, on the surface or between layers.

Welding capacity of medium and high carbon steels is low, this causes cracks at the end of the welding pool or in the heat-sensitive areas. In case this situation happens, it requires welders to preheat and local heat the areas of welds.